LTC3547EDDB#TRMPBF

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The LTC3547EDDB#TRMPBF DC-DC converters are integrated voltage regulator ICs that are designed to be used in power efficient devices and are capable of achieving high efficiency in a wide input voltage range. The IC operates with a high switching frequency range of up to 3MHz and provides adjustable output voltage that can be regulated from 1 to 4V.

These ICs are mainly used for on-card and board applications where regulated output is required at a low power level. Examples of such applications include portable medical and industrial designs, cellular phones, consumer products and portable consumer electronics. With an integration of Synchronous Buck PWM and Low Dropout linear regulator, the ICs have an operational capability over a wide input and load range.

The LTC3547EDDB#TRMPBF\'s Silent Switcher feature eliminates audible noise in certain configurations that are prone to acoustic noise. Unlike classic switching regulators, the Silent Switcher achieves low noise with no external components and low off-time in the controller, resulting in a low-noise, efficient, and highly integrated circuit. It operates with peak efficiencies of up to 94% and a power range of up to 2.5W.

The working principle of the LTC3547EDDB#TRMPBF is based on the Synchronous Buck Boost Converter (SBBC) architecture. It uses two highly efficient inductors in the conversion process to maintain the voltage feedback loop, enabling high conversion efficiency and excellent line and load regulation performance. It uses an advanced auto-discharge scheme, combining a discharge pin and voltage loop. This scheme reduces the output voltage to a programmed level when the regulator is disabled, reducing power dissipation and improving system reliability.

The LTC3547EDDB#TRMPBF also incorporates a Low Dropout (LDO) linear regulator, as well as under voltage lockout, durability and fault protection circuits. The LDO enables a fast transient response for load transients and provides a low quiescent current (2uA) for very low power applications. The under voltage lockout circuit prevents the voltage regulator from turning on if the input voltage is too low. It also features a durability protection circuit which protects the IC in case an over current or over temperature condition occurs.

The LTC3547EDDB#TRMPBF is the ideal power management solution for power efficient designs. With its Synchronous Buck Boost Converter, advanced auto-discharge scheme, high switching frequency, wide input and output range, silent switcher feature and durable protection circuits, it offers efficient, reliable and low noise power conversion for a wide variety of applications.

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